aes92000:
Audio isn't DC.
not trying to be rude but...
no, audio is not DC current but my batteries and power to amps is DC current
I suppose it depends on which wire you point to and call "Ground".
(But by that definition, all signals are DC...)
Still, if you have a wire going to a big capacitor from a power supply (with the rest of the system powered from that capacitor) the signal in that wire should be pretty close to DC.
Clamping that wire to measure the current should work. All you need is a clamp that can measure that much current.